C21221212121211331322132313132313132313232233132313223313132333132313233311   >>    C2122121212121133132213231313231313231323223313231322331313233313231323331   <<    C21221212121211331322132313132313132313232233132313223313132333132313233313   >>      C21221212121211331322132313132313132313232233132313223313132333132313233312   >>